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The most expensive method of accessing the Internet is to employ leased lines that directly connect to the ISP. This will enhance access rate to anywhere between 64 K and 1.5 Mbps, based on the system in use. Equipment called data service units (DSU) & channel service units (CSU) are set up in pairs, one pair at the customer site & the other at the ISP site. There is no phone dialing needed since the connection is direct. Also the only protocol required to complete the access is TCP/IP, for much the similar reason. Based on the transfer rate needed and the distance between the sites, cabling amongst them can be made with fiber optic cables or unshielded twisted-pair (UTP) copper wire.
Physical Configurations Transport signal multiplexer de multiplexer. It either signal from multiple sources into a STS singles or de multiplexes and STS signal into diffe
Encoding Process c= uG u: binary data sequence of length 4( input) G: Generator matrix which is 7*4 c: Codeword D
Q. What are the TCP Services? TCP - Services Full Duplex Service Connection Oriented Service Reliable Service
We can deactivate advanced editing us using terminal no editing
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
Enumerate about the Virtual Private Network (VPN) Even though, many firewalls also include the features of the virtual private network, the functionality and capabilities of V
A carrier is frequency modulated with a sinusoidal signal of 2 kHz, resulting in a maximum frequency deviation of 5 kHz. (a) Find the bandwidth of the modulated signal (b) The ampl
Questions: A signal of amplitude 10 mV is fed to the amplifier in the figure. What is the amplitude of the voltage at the output from the amplifier?
Can you describe the concept of DHCP?
Ans) The Transport Layer : Segments upper-layer applications. Establishes an end-to-end connection. Sends segments from one end host to another. Optionally, make sures
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